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(No Model.)

A. BERNBY.

STEAM MUFFLER.

Patented Sept. y 9, 1884*.

lfm r in S'iuiiiis lii'i'hrv'r th rima.

STEAM-Munten.

SPBCPICATXON frmins Pitti f LUYUII Fatnl NO- 395.596. dlwd iylmbtl 5 la.pplii'lillm Med (klulwl 3,1521 (Nv Emiel.)

To ail :rh/:m it muy concern.-

thercby shutting.; oft` the draft of the chimney 3e it known that I,Airuno lli-zlcxi-zv. a citipxutly,wl|lle thc steam will escape gentlyand zen ofthe lnitcd Statt-s, residing at Boston, 1n thc county ofSuffolk und Stale of )lassa- 5 chnsctts. have invented certain new andnnefnl Iniprovcnimn s in Stcant-MLxtllerS; and I do hereby declaro thefollowing to be a full, clear, and exact h cription of the invention,such as will enable others skilled in the art to which itpertains tomake und use the same.

)1y invention relates to improvements in siriani-mothers, and the objectis to prevent the disagreeable noise produced by the steam escaping fromlocomotive safcty-valves,and atJ ms of the Same time to contro A,thefire by me:

the draft in the chimney, and also to prevent the too rapid generationof steam by the tire becoming too hot, und thusv also saving fuel.

The invention consists in the construction and arrangement of cci-tainparts, as will be more fully described hereinafter, and specilicallypointed out in the claims, reference being had to the accompanyingdrawings and the letters of reference marked thereon.

Like letters ofrefcrcnce indica-te like parts in theA dillerent figuresof the drawings, in which Figure-.l represents a longitudinal section ofn locomotive-boiler with my muttler in posillon. Fig. 2 is a. plan viewofthe saddle and perforated ring. Fig. 3 isa modification of the saine.

lo the drawings, A represents the boiler, with the ordinary fornace F,fines B, smokenrch C, and chimney or smoke-stack D. The stcanrdorne Ehas arranged initstop the ordinary eafetywalve, G, which is incloscd ina hood,y, so that when blowing ot steam it must escape through the pipeH,leading to ,o the sinoliestack l). A saddle, S, of the ordinary hollowkind, is arranged on said smokestnck, and in thespace formed within thesaddle is placed a ring or pertofa. ring, l, formed cfa tube or pipe,and provided with a numberof tino holes or pcrfonitions, i. To this ringthe pipe Il in attached, so that when the safety-valve is blowing off byexcessive pressum the steam will escape thmngh the perforationc and forma film or sheet ofsteam,

-i h, leading,r

through thc chimney nithont making any noise. ily this menos there will.also be no waste of fncl or steam. lfdcsired, the ring l may bearranged in l the upper partofthe smoke-stack with n pipe, to it; orthere may be two rings, t one above and onel below. The operation is asfollows: When thesteam escapes from the safety-valve into the pipe H andpasses into the ring I, ity blows through the small holes, and aseendsslowly np the smoke-stack without noise, and at the saine time checksthe draft. by means of the film formed by the steam blowing across the.stack from all directions.

l am awarethat- .steam from the safetyvalve has been conveyed into theexhaust-passages of the cylinders, also into the sniokearcb of theboiler, and also into the smokestack to act as a blower to increase thedraft and the intensity` ofthe fire, thus wasting fuel and water, vandoften enuisiin,r great and dangerous pressure until relieved by theblowing oltfroin a. second valve, or by cooling oi the fire to prevennserions accidents. I do not, however, conine myself to a. ring or partof a ring having numerous perforations, as the saddle or any part ofthestack itself can be used for the same purpose. For instnee, the saddle,especially, provided with the apertures for the steampipe andconnections. A dripqiipe Afor the condensed steam may also be castJ withth-4 saddle.

'By arranging the drip K in connection with the ring I any water passingover from the boiler, as well as the condcnsownter, can bo easily gotrid of.

Having thus described my invention, I'claiin isi 1. In u steam-muffler,the combination o. the pipe leading from the safety-valve with aperforated ring arranged in the saddle of the smoke-stack, and aringplaced in the upper cnd of the smoke-steek and connected by a verticalpipe with tho lower ring, all enlisted tiolly as specified.

slowly what can be cast with a cavity in it, and

L. 'The muler herein described. consisting perforated ring anddrip-pipe, substantially of u pipe, 1I, eonneeted to the hood o( nsafety' us sperled. w vulve, and to e ring, I, provided with perfo- 1utestimony whereof lnx my signature ln rations arranged in the sndde ot'the Smoke- 't presence of two witnesses. 5 stuck, und n drpfpipe, K, :1Hsnbstnntin'ly as 1 ALFRED BERNHY.

:unl for the purpose set forth. i

3. In a .stemn-1uujher,lhe combination ofi u pipe leading from thesufetywnlve with :L

Witnesses:

Lwx'n F. Krzmcnrzn, T. C. BRECHT.

